An off-by-one error leading to a heap-based buffer overflow has beenidentified in libapache-mod-auth-kerb, an Apache module for Kerberosauthentication. The error could allow an attacker to trigger anapplication crash or potentially execute arbitrary code by sending aspecially crafted kerberos message.

For the stable distribution (sarge), this problem has been fixed inversion 4.996-5.0-rc6-1sarge1.

For the unstable version (sid) and the forthcoming stable version(etch), this problem has been fixed in version 5.3-1.

We recommend that you upgrade your libapache-mod-auth-kerb package.

Upgrade instructions- --------------------

wget url will fetch the file for youdpkg -i file.deb will install the referenced file.

If you are using the apt-get package manager, use the line forsources.list as given below: